Kidney Function Blood Test

Problems with kidney function are common. Use our kidney function blood test to get an accurate measure of your kidney function.

  • Doctor reviewed
Sample
Blood
Collection
Venous draw (clinic, nurse visit or own kit)
Results in
5–6 days
Biomarkers
2
Doctor reviewed
Yes
Tests for
  • Estimated glomerular filtration rate (eGFR)
  • Cystatin C

Test specifications

Provider
Selph
Sample type
blood
Collection method
venous draw (clinic, nurse visit or own kit)
Turnaround time
5–6 days
Biomarkers tested
2
At-home test
No
Doctor reviewed
Yes
Gender focus
Both

What's tested

2 biomarkers as listed by Selph.

Kidney Function

  • Estimated glomerular filtration rate (eGFR)

Kidney health

  • Cystatin C

About this test

Want to measure your kidney function? Our Kidney Function Blood Test is the test you need.

Kidney function is a core part of your overall health. You can arrange a venous blood draw yourself or visit one of our partner clinics to have your blood taken. You'll get a report with your kidney function test results along with any recomendations of actions to take.

What you need to know about our Kidney Function Blood Test

If you're looking for the most accurate blood test to measure kidney function, this is it.

What does the Kidney Function Blood Test check for and why?

This blood test measure your level of cystatin C. This allows us to caluclate your estimated glomerular filtration rate (eGFR).

When it comes to measuring kidney function, cystatin C has been shown to be more accurate than the commonly used marker creatinine. This is because cystatin C is not affected by muscle mass or supplemental creatine use which can give false creatinine measurements.

What do my kidney function results mean?

Our kidney function blood test will tell you your estiamted glomerular filtration rate or eGFR. This measure takes into account your age and sex and we interpret the results as follows:

eGFR (ml/min/1.73m2) Interpretation Greater than 90 Normal kidney function 60-89 Stage 2 kidney disease. Mild impairment in kidney function. 30 - 59 Stage 3 kidney disease. Moderate impairment in kidney function. May cause symptoms. 15 - 29 Stage 4 kidney disease. Moderate to severe impairment in kidney function. Less than 15 Stage 5 kidney disease. Severe impairment in kidney function. Likely to need dianlysis.

Blood collection options

  • Visit a clinic to have your blood taken (+£35.00)
  • Book a venous draw at home or work with a nurse (+£70.00)
  • Arrange your own venous blood draw (included)

Description provided by Selph.

Our editorial score

Compare Health Test Score
Editorial confidence: 10.0/10

Score breakdown

  • Clarity and UX 9.0/10

    The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.

  • Clinical Depth 7.9/10

    2 biomarkers, placing it in the 57th percentile of liver kidney tests we track.

  • Collection Convenience 4.0/10

    Requires a venous draw at a clinic; a home nurse visit is offered; results in around 6 days.

  • Price Value 9.3/10

    £59.00 against a median of £135.00 for the 20 similarly sized liver kidney tests we track (-56%).

  • Results and Follow-up 7.5/10

    Results are reviewed by a doctor.

  • Trust Signals 10.0/10

    Trustpilot 4.9 from 71,592 reviews; accredited lab (UKAS ISO 15189 partner labs (Inuvi, TDL)); CQC registered; doctor review as standard.

View all →